Cassandra Multi-AZ Data Replication

Posted on August 19, 2015 by CloudThat | Comments(7)

Apache Cassandra is an open source non-relational/NOSQL database. It is massively scalable and is designed to handle large amounts of data across multiple servers (Here, we shall use Amazon EC2 instances), providing high availability. In this blog, we shall replicate data across nodes running in multiple Availability Zones (AZs) to ensure reliability and fault tolerance

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Migration from relational database to NoSQL database

Posted on August 19, 2015 by CloudThat | Comments(0)

Relational database model was proposed in 1970, since then we are using RDBMS for most of the applications. But this model is having a hard time keeping pace with the volume, velocity, and variety of data. To keep pace with growing data storage needs, NoSQL databases were introduced in which the focus has shifted from relationships in data, to have a scalable solution to store large volumes of data.

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Managing Users in VMware vCloud Air

Posted on August 7, 2015 by CloudThat | Comments(2)

Companies migrating onto the cloud have numerous users with various roles that manage the infrastructure. User Management on cloud is therefore a vital part. It allows you to create and manage user accounts. You can have identity and fine grained access control by assigning specific permissions to each user. In an organization, there can be employees performing different type of actions on the infrastructure.

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Comparison between VMware vCloud Air and Amazon Web Services

Posted on July 3, 2015 by CloudThat | Comments(0)

Being the market leaders in data center virtualization, VMware is a front runner when it comes to private clouds. They have gained that trust amongst their customers, something of which is helpful in this era of public clouds. The gradual growth in public cloud offerings has made VMware to scratch its head, since the top companies in public cloud offerings like AWS, Microsoft Azure and Google Cloud do not use VMware.

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IAM Authorization Hierarchy

Posted on May 5, 2015 by CloudThat | Comments(2)

Identity and Access Management (IAM) is the service that provides a authentication and authorization control for users and resources in ones AWS account. Although authentication has been quite simple and straightforward, viz. one can create groups, users and credentials for the users and share the same, authorization is quite a trick on IAM.

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Ansible for DevOps

Posted on April 29, 2015 by CloudThat | Comments(2)

Now is the Era of Cloud where you can dynamically provision IT infrastructure more quickly than you ever thought before. Various cloud providers such as Amazon Web Services, Azure, Google Compute Engine and many others have made this possible in recent years.

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Infrastructure Automation and Chef(Part-1)

Posted on April 29, 2015 by CloudThat | Comments(1)

Infrastructure automation has become an indispensable part of IT industry today. But what exactly is infrastructure automation and why does it matter?

Back in the good old days expanding an existing infrastructure was a time consuming task, it would take weeks or in some cases months to procure the required hardware and additional weeks to configure it as per the need.

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